While new optical illusions go viral all the time, here are some of the most famous illusions that have kept us scratching our heads for years.

Long ago, back when twirling things was both an entertaining diversion and a serious mode of scientific inquiry, several researchers noticed an odd optical illusion. Spinning a white disk with a ...

It’s an eye-nigma. The internet is blowing a collective gasket over a perplexing optical illusion that can purportedly only be solved by 1% of people. The visual jigsaw was first shared in November by ...

A bizarre optical illusion tricks your brain into seeing colours in a black and white spinning disk.

Optical illusion personality tests trick the eyes and minds into believing what is seen first based on a person’s perspective ...

Elon Musk is on top of the world after Twitter accepted his $44 billion buyout offer on Monday. But the Tesla founder, 50, appears upside down in a new optical illusion that highlights how easy it is ...

If you have never seen an optical illusion, it is an image that makes you see things differently than they actually are. Optical illusions trick your eyes into believing you see something that is not ...

There's something oddly satisfying about staring at a single image and realizing your brain locked onto one detail before you ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A real-life optical illusion has gone viral after being posted to ...

This particular section of the Massachusetts Rail Trail has arguably the most interesting feature in the entire state.